What is weak power cable? What are the domestic and international manufacturers of weak power cables?

First, what is a weak cable? A weak cable is a cable that transmits signals and data with low voltage, low current and low power. It is mainly used for transmitting voice, video, data and other signals, such as telephone, television, network, security, monitoring and other fields. Compared with the strong cable, the voltage and current transmitted by the weak cable is very small, usually not more than 50V and 2A, so it does not need to be insulated and shielded, and it can meet the needs of transmitting signals. Classification of weak power cables According to the type of signal transmitted, weak power cables can be divided into various types, such as: communication cables, control cables, security cables, signal cables, computer cables and so on. Communication cables: communication cables are used to transmit telephone, broadband, television signals and other communication information, usually using twisted-pair structure, divided into shielded and unshielded, shielded usually have better anti-interference ability. Control cables: control cables are used to transmit control signals, such as PLC control signals, DCS control signals, instrumentation signals, etc., usually using multi-stranded or shielded stranded structure. Security cables: security cables are used to transmit video, audio, control signals in the security monitoring system, usually using coaxial cable or twisted-pair structure. Signal cable: signal cable is used to transmit various signals in electronic equipment, such as audio, video, data, etc., usually using coaxial cable, twisted pair or multi-stranded structure. Computer cable: computer cable is used to connect computer equipment, transmission of various data signals, usually twisted pair or coaxial cable structure. The structure of weak power cable weak power cable structure usually includes conductor, insulation, shielding, sheath and other parts. Conductor: weak cable conductor usually uses copper wire, there are a few copper alloy or aluminum alloy wire. Insulation: insulation is an important layer to protect the conductor from interference, usually made of polyethylene, polyvinyl chloride, polypropylene, polystyrene and other materials. Shield: The shield is usually used to protect the conductor from external interference In addition to the common weak power cables mentioned above, there are many other types of cables, such as power cables, audio cables, video cables, network cables and so on. Each type of cable has its own unique transmission characteristics and applicable occasions. Weak power cables play a very important role in modern society, they provide us with stable, high-quality communication and data transmission services, and become an indispensable part of modern life.

Second, what are the domestic and foreign manufacturers of weak power cables?

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